DEDHAM (CBS) – A jury found Matthew Potter guilty on Tuesday of two counts of manslaughter in a 2019 Quincy bar brawl that killed Christopher McCallum, a father of three. Potter was found not guilty of three counts of assault.
Potter is expected to be sentenced at 3:15 p.m. Tuesday.
Prosecutors said McCallum was trying to end a brawl in the Quincy American Legion Hall parking lot in 2019 when he was attacked by Potter.
Potter was accused of hitting McCallum so hard that he fell to the ground and suffered a brain injury that ultimately claimed his life.
The jury began deliberating on Monday and delivered a verdict a day later.
McCallum was a 44 year old father who lived in Bridgewater with his family. He had gone to the American Legion Nickerson Post bar on Moon Island Road in January 2019 with his brother to see a band perform that night.
His family said McCallum was punched in the face as he tried to break up a scuffle on the exit, was run over and hit his head. He was pronounced dead the next day.
Potter’s attorney argued that the state did not have the evidence to prove him guilty, claiming that Potter was in fact the victim in this case.
He faces several charges, including manslaughter.
Matthew’s brother, Steven Potter, has been charged with assault as a result of the incident. The brothers are the sons of a retired police officer from Quincy.